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305TPI goin in my Jeep. Questions

 
Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/12/11 04:29 PM

So glad to find you all.
I will probably have some questions as I go along with this swap. So I will just post them here.

Question 1: What fuel pressure does the stock LB9 TPI setup run at? My stock jeep pump is 39.4psi I think.  

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waynep7122
V-6 Camaros rule!
Posts: 109
Joined: 11/09
Posted: 02/13/11 01:49 AM

that should work.. depending upon the year of the jeep...

the later ones have a single line NON return system...

with these non return line systems..   you might run into them that use a fuel pump that is controlled by the ECM.. to keep the fuel pressure controlled..    others have a return off the filter under the jeep...

i wonder if any of these swaps were covered over in jpmagazine.com on this site..  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/13/11 10:39 PM

Thanks for the reply. The jeep is a 2.5efi. It has a very similar fuel rail as the tpi. Fuel in, fpr, and fuel return. I think I can adapt that part. Just lookin for stock TPI fuel system pressures. I will do a search. Should turn up something.  

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waynep7122
V-6 Camaros rule!
Posts: 109
Joined: 11/09
Posted: 02/14/11 02:58 AM

the jeep pump should create enough pressure for the TPI....  TPI usually have 38 or 39 PSI...

as the running pressure is controlled by the fuel pressure regulator...

the fuel pumps usually create over 65 psi.

i don't think that you posted the info on the jeep..

look up the electric fuel pump at autozone.com...  they usually have flow ratings and max pressures listed...


now... will the pump flow enough...    probably...  but check the ratings anyway...

or post what jeep you have...  i will check the listings..  

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waynep7122
V-6 Camaros rule!
Posts: 109
Joined: 11/09
Posted: 02/14/11 03:02 AM

Airtex Master/Fuel Pump For your 1991 Chevrolet Camaro Z28 5.0L FI 8cyl
Part Number: E3210
Airtex electric fuel pump-only unit
Designed for GM applications
Part Number: E3210
Inlet Attachment: Inlet-Strainer
Inlet Count: 1
Installation Hardware Included: Yes
Maximum Free Flow Rate (gph): 40
Maximum Pressure Range (psi): 95
Minimum Free Flow Rate (gph): 40
Minimum Pressure Range (psi): 65
OEM Part Number: 25116163 25163463
Outlet Attachment: Outlet-HoseConnection
Outlet Count: 1
Outlet Size: Outlet - 5/16  

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waynep7122
V-6 Camaros rule!
Posts: 109
Joined: 11/09
Posted: 02/14/11 03:05 AM

Airtex Master/Fuel Pump
For your 1993 Jeep Cherokee 2WD 2.5L MFI 4cyl Part Number: E7006
Designed for Chrysler applications
Part Number: E7006
Gaskets Included: Yes
Inlet Attachment: Inlet-strainer
Inlet Count: 1
Installation Hardware Included: Yes
Maximum Free Flow Rate (gph): 45
Maximum Pressure Range (psi): 110
Minimum Free Flow Rate (gph): 45
Minimum Pressure Range (psi): 90
OEM Part Number: 4637192, 4637193, 68001826AA
Outlet Attachment: Outlet-HoseBarb
Outlet Count: 1
Outlet Size: Outlet - .32  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/15/11 08:45 AM

Thanks. Its a 93 2.5 mfi 4cyl wrangler. Looks like the pump is adequate. I will look up my specific pump number (I just installed a new one) and double check. Thanks.  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/19/11 10:49 PM

Got everything out today. Racked my brain tryin to remember what came from what.
I wrote down all the casting/part numbers from everything. I will post them tomorrow. Gotta get some sleep for now.
What chaps my butt is i can only find the one distributor.

So, heres the chaotic history/mess.

My brother had an 86' z28. It had a 350tpi. He had to change the MAS, a lifter, an injector, and then eventually a rod started knocking, so he pulled that motor, and dropped in a 305 from a 92rs TBI and installed the TPI on it. Needless to say, he couldnt get it runnin right. He said his exhaust manifolds would glow so red hot, he could see every cylinders pulse. lol
So I traded him something for the car. I pulled the motor and tpi, and sold the rest of the car. So that means one of my setups is for an 86' 350 (which makes sense because I have that dist, and a MAF sensor layin around).

Then, a buddy sold me an 89' 305 with the attached TPI. It was out of a wrecked Pont Firebird with only 52,000mi or so iirc.
But cant find the dist to that one. Frown

My question now is, which set up should I use, or will it make a diff? Im going to buy a stand alone harness, just to make this a little simpler since its a retro type transplant.

If i recall correctly, the plenum on the left, goes with the intake on the right (86' 350) but am not positive.
Tpi  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/20/11 03:44 PM

Ok. Heres the numbers I got off all the components. I basically need to know which would be best to use (if they are different), and ultimately, which way should I go (MAF or MAP). The engine is stock, and no upgrades are planned.

The left Plenum: 10077151
Left throttle body: 17090154

Left intake: 140069, 10066015
Left fuel rail: 17089024

Right intake: 141310, 10066015
Right fuel rail: 17090101

Right plenum: 10108468
Right throttle body: 17089023

One difference ive noticed is the tb on the left has some kind of air splitter in between the blades, where as the tb on the right doesnt have the added piece.

Also, that valve sticking up in the center of the left intake (im guessing EGR?) has a terminal and one wire coming from its 7oclock position, where as the EGR? on the right intake has no terminal for a wire, and is infact open underneath.  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/24/11 12:46 AM

Neither setup appear to have any cold start injector. So that rules out 85'-88'. I guess. ?  
I wish my books would hurry up and arrive.  Tongue  

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Scott Parker
Moderator
Posts: 217
Joined: 12/07
Posted: 02/24/11 06:47 AM

Any more information you can share about your swap? What trans? Adapters, etc?  

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Complete_loser
I love my Chevy Chevette!
Posts: 22
Joined: 02/11
Posted: 02/24/11 09:22 AM

The vehicle: 93 yj (2.5mpi Ax5-5spd. getting removed)
The engine going in 89' 305 (engine code ATA)
Induction: picked from an assorted pile of TPI parts listed above.
Tranny going in: Ax15 with Novak adapter plate to chevy manual bellhousing
tcase going in: NP231j
Existing axles: 4:11 front 4:10 rear  

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TGO_SUX
I love my Chevy Chevette!
Posts: 10
Joined: 02/11
Posted: 03/05/11 12:42 AM

Things that are commonly over looked in the 305/350 swaps (maybe in your brother's swap) is the need to change the prom and ESC.
Make sure you use the correct ones in your swap.  

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